5.0stanger

Well, I have started my convertion and I have gotten conflicting info on the VSS. My car does not have this sensor, no cruise controll. I have read one place that it is optional to wire this up, then in another place that has to be done and I have to purchase the sensor to do so. Anyone know for sure? If I don't have the sensor, would it be worth the extra hassle?

I also wonder about the fuel pump relay, I have also read that this hook up is optional, then in another place it has to be done. I plan on doing it, but I was just wondering what would happen if I didn't do it.

Thanks for the info in advance!

Joel5.0

Yep....it is required, and worth the extra hassle. The VSS input is used for idle control and prevent stalls when you're coming to a stop.....why would it be connected to the ECM if the input is not used?

grabbem88

it's a hit and miss with that thing....the wires are ticked up under the car drivers side...cost me less than 25 bucks...junk yards will have everything you need...i drove my car without for a awhile....

5.0stanger

So you had to put one in?

grabbem88

yep....mines an 88gt...green /orange wires

5.0stanger

That was my question, considering I don't have one on my car. I know the SD and MAF computers are differnt and I guess I need it for the MAF.

grabbem88

vss sends a signal to your tps to tell it if it's under load or at idle...then your rpm will adjust up or down when clutch is depressed...

auto's for the most react the same way

5.0stanger

got ya, thanks. So the wires are under the car for it already?

AdderMk2

I say screw the maf conversion.... the megasquirt conversion uses less wiring....

grabbem88

shut up ,mike...yes they are under the car...stupid megasquirt